Problem A
Exact Change — Problem Statistics

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Submissions	893
Accepted submissions	180
Submission ratio	20.16%
Authors	177
Full solves [?]	142
Full solve Ratio	80.23%

#	User	Runtime	Language	Date
1	Samuel Deutsch	0.72 s	C	2020-10-21 10:32:12

#	User	Runtime	Language	Date
1	Ryan Doan	0.00 s	C++	2022-10-06 09:33:59
2	Richard Li	0.01 s	C++	2020-02-23 02:20:43
3	Youngsik Yoon	0.01 s	C++	2020-02-24 06:25:38
4	Jeremy Chang	0.01 s	C++	2020-03-01 00:08:06
5	Jim Zheng	0.01 s	C++	2020-03-07 09:43:47
6	Leaderboard	0.01 s	C++	2020-03-08 06:27:18
7	Ruoyu Song	0.01 s	C++	2020-03-08 18:37:42
8	Rachael Cai	0.01 s	C++	2020-07-29 17:35:27
9	Aniket Kumar Gupta	0.01 s	C++	2020-10-16 11:09:10
10	Srikar Gutta	0.01 s	C++	2020-10-22 03:42:23

#	User	Runtime	Language	Date
1	Abhinav Dusi	0.69 s	Common Lisp	2021-10-14 08:14:00

#	User	Runtime	Language	Date
1	Thomas Ashcraft	0.08 s	C++ with Memory Check	02:21:46

#	User	Runtime	Language	Date
1	Mikail Khan	0.03 s	Haskell	2022-02-28 03:09:53

#	User	Runtime	Language	Date
1	Daniyal Ahmad Bekinalkar	0.09 s	Java	2023-10-06 02:16:28
2	Mehrzad Gandhi	0.13 s	Java	2022-03-03 21:42:03
3	Mohamed Bah	0.14 s	Java	2020-03-05 21:58:15
4	Andrew Lim	0.15 s	Java	2022-03-05 04:48:36
5	Austin Chen	0.16 s	Java	2022-10-04 22:29:17
6	Leo Pan	0.16 s	Java	2022-10-05 16:06:45
7	Maxim	0.16 s	Java	2022-10-06 05:34:57
8	Vijay Bharadwaj	0.17 s	Java	2020-03-05 00:41:17
9	Grace Keeton	0.17 s	Java	2022-03-03 17:54:03
10	Ayushman Singh	0.18 s	Java	2021-10-27 01:41:02

#	User	Runtime	Language	Date
1	Varun Asuri	0.07 s	Python 3	2022-10-07 02:59:50
2	Unumunkh Balgansuren	0.08 s	Python 3	2020-02-24 16:07:02
3	Nishka Awasthi	0.08 s	Python 3	2022-10-07 05:41:29
4	bai li	0.08 s	Python 3	2023-09-28 01:45:14
5	Ziyang Huang	0.08 s	Python 3	2023-10-06 02:18:02
6	Junseok Oh	0.08 s	Python 3	2023-10-06 06:36:18
7	Sam Bruns	0.09 s	Python 3	2020-03-05 23:38:47
8	Dhruv Ramanujan	0.09 s	Python 3	2020-10-22 08:49:17
9	Joshua Yeung	0.09 s	Python 3	2021-10-22 05:40:19
10	Hyun Eric Kang	0.09 s	Python 3	2023-10-06 02:36:24

#	User	Runtime	Language	Date
1	Keya Jadhav	0.08 s	Python 3 with NumPy	2025-10-06 06:32:04
2	Gilbert Hsu	0.28 s	Python 3 with NumPy	2023-10-06 04:15:45

#	User	Runtime	Language	Date
1	Anirudh Rao	0.01 s	Rust	2022-03-04 08:34:20

#	User	Length	Language	Date
1	Samuel Deutsch	1150	C	2020-10-21 10:32:12

#	User	Length	Language	Date
1	Aaryan Gautam	665	C++	2022-03-04 18:19:51
2	Nghia Hoang	695	C++	2021-03-15 15:54:10
3	Ashvin Iyer	752	C++	2022-03-02 23:00:32
4	Trung Dang	768	C++	2020-06-27 21:47:49
5	Evan Yang	790	C++	2021-10-14 21:50:04
6	Swastik Agarwala	812	C++	2023-10-06 05:10:27
7	Owen Eckart	815	C++	2021-10-18 20:02:37
8	Arnav	825	C++	2022-03-05 05:16:26
9	Richard Li	838	C++	2020-02-23 02:20:43
10	Avi Aggarwal	841	C++	2025-10-02 01:11:54

#	User	Length	Language	Date
1	Abhinav Dusi	1263	Common Lisp	2021-10-14 08:14:00

#	User	Length	Language	Date
1	Thomas Ashcraft	964	C++ with Memory Check	02:21:46

#	User	Length	Language	Date
1	Mikail Khan	1322	Haskell	2022-02-28 03:09:53

#	User	Length	Language	Date
1	Bill Fei	852	Java	2020-07-06 17:22:37
2	Alan Bare	1145	Java	2020-10-24 15:54:14
3	Mohamed Bah	1247	Java	2020-03-05 21:58:15
4	Ninghui Li	1306	Java	2020-02-20 17:13:12
5	Ryan Chang	1314	Java	2021-10-21 22:06:06
6	Peter Jin	1373	Java	2022-09-28 14:21:13
7	Ayushman Singh	1386	Java	2021-10-27 01:41:02
8	Austin Chen	1419	Java	2022-10-04 22:29:17
9	Selina Lin	1421	Java	2025-10-07 03:18:46
10	Monal Mahajan	1456	Java	2021-10-28 02:48:13

#	User	Length	Language	Date
1	Matthew Li	456	Python 3	2025-10-03 21:16:14
2	Zhan Gao	459	Python 3	2020-03-08 19:43:43
3	Kevin Wu	461	Python 3	2020-02-28 07:08:56
4	bai li	474	Python 3	2023-09-28 01:45:14
5	Unumunkh Balgansuren	493	Python 3	2020-02-24 16:07:02
6	Anthony Stahura	506	Python 3	2020-10-20 19:57:23
7	Hyun Eric Kang	558	Python 3	2023-10-06 02:36:24
8	Aagam Bapna	580	Python 3	2025-10-03 02:38:20
9	Hidden user	589	Python 3	2025-10-07 21:34:24
10	Ashley Jojan Varghese	602	Python 3	2021-10-28 05:54:22

#	User	Length	Language	Date
1	Keya Jadhav	755	Python 3 with NumPy	2025-10-06 06:32:04
2	Gilbert Hsu	1202	Python 3 with NumPy	2023-10-06 04:15:45

#	User	Length	Language	Date
1	Anirudh Rao	1563	Rust	2022-03-04 08:34:20

Solution running time distribution